Concealed hinge



Jam 12, 1937. L. R. 'CLARKE 2,067,561

CONCEALED HINGE Filed Dec. 30, 1935 E2C/eatin@ vll-Agg Patented Iian. 12, 1937 FATET OFFICE 3 Claims.

This invention relates to hinges which are adapted to be mounted on and concealed behind the parts to be connected but which nevertheless permit one of said parts to swing outward or forward from closed position.

It is the general object of my invention to provide an improved construction of flush or concealed hinge of the type described, so designed that it may be easily and economically manufactured and that it will be effective and reliable in use.

An important feature of the invention resides in the possibility of using a single type of hinge member only, a plurality of which members may be assembled to provide a hinge of any desired width.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of the invention is shown in the drawing, in which Fig. l is a front elevation of a structure having my improved hinge applied thereto;

2 is a sectional plan view, taken along the line 2 2 in Fig. l;

Fig. 3 is a View similar to Fig. 2 but showing the parts in a different position;

Fig. i is a side elevation of a hinge member;

Fig. 5 is an end view thereof;

Fig. 6 is a detail view of a portion of one of the supporting parts, and

Fig. '7 is a similar view of a portion of the other supporting part.

My improved hinge is designed particularly for pivotally connecting two surface members, such as a sheet metal door and casing. The hinge may be built up to any desired width by using a plurality of separate hinge members IIl, one of which is shown in detail in Figs. 4 and 5.

Each hinge member is preferably formed by a press operation from a single piece of suitable sheet metal, and is preferably of the U-shaped cross section shown in Fig. 5. Pivot openings I I are provided in the side walls l2 of the hinge member l0, and these pivot openings II are positioned substantially to the rear of the face portion I4 and at an intermediate point substantially removed from each end of the face portion but closer to one end than to the other.

In order to use my improved hinge, the abutting edge of one supporting or surface member, as 2D, is provided with spaced projecting portions 22 (Fig. 6), and the abutting edge of the other supporting or surface member 2l is provided with spaced slots or openings 23 (Fig. 7).

The edges of the abutting surface members 2G and 2l are oppositely beveled as indicated in Fig. 2, and th'e ends of the projections 221 `and openings 23 are correspondingly beveled.

Hinge members I0 are rmly secured in any convenient manner, as by rivets 25, to the back of the surface member 20 directly behind the projections 22' and preferably extend somewhat beyond the ends of the projections as clearly shown in Fig. 3.

When the hinge is closed, each projecting end portion may engage the back face of the adjacent surface member and form a stop determining the closed position of the parts.

Corresponding hinge members I0 are similarly secured to the back of the surface member 2| as by additional rivets 25, and are positioned between the openings 23 or at the side thereof. When between the openings, they are behind the portions 2l (Fig. 7) separating adjacent openings.

A hinge pin 32 of suitable length will be in-r serted in the pivot openings II of the several hinge members i0 and may be permanently secured therein by heading over the lower end as indicated at 33 in Fig. 1.

With the parts thus constructed and assembled, the closed position of the parts will be as indicated in Figs. 1 and 2, with the beveled portions of the surface members overlapping to provide tight joints, and with the hinge members I0 entirely concealed behind the surface members 20 and 2 I.

Opening movement of the member 2| is in the forward direction as indicated in Fig. 3. The associated beveled portions swing away from each other and the beveled edge 3B of the surface member 20 may form a stop for the surface member 2l and determine the open position thereof, as clearly shown in Fig. 3.

It `will thus appear that my improved hinge is of extremely simple construction, that it may be very economically manufactured, that it may be formed entirely of duplicate parts of one kind only, and that it may be built up to provide a, hinge of any desired width and supporting strength.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:-

1. In a hinged structure, the combination with a relatively stationary surface member and a relatively movable surface member, said members abutting each other and one of said members having spaced projections at the edge thereof, and the other member having correspondingly spaced openings at the edge thereof to receive said projections, of a hinge comprising a plurality of separate hinge units mounted on one member behind said projections and mounted on the other member at the sides of said openings, and means to pivotally connect said members together, each of said hinged units having an end portion projecting beyond the edge of the surface member on which it is mounted and engaging the rear face of the opposite surface member to form a stop when the surface members are in closed position but leaving the movable surface member free to swing forward away from its closed position in an opening movement.

2. In a hinged structure, the combination with a relatively stationary surfacemember and a relatively movable surface member, said members abutting each other and one of said members having spaced vprojections at the edge thereof and the other member having correspondingly spaced openings at the edge thereof to receive said projections, of a hinge comprising a plurality of duplicate hinge units mounted on one member behind said projections and mounted on the other member at the sides of said openings, and a pvot pin connecting said hinge members together, said pivot pin being positioned at a point substantially rearward of said ksurface members and substantially spaced from one end o f each hinge member toward the middle thereof, each of said hinged units having an end portion projecting beyond the edge of the surface member on which it is mounted and engaging the rear face of the opposite surface member to form a stop when the surface members are in closed position but leaving the movable surface member free to swing forward away from its closed position in an opening movement.

3. Concealed means for hinging a movable part to swing forward on -a xed part about a fixed axis positioned substantially rearward of the rear surface of said xed part, which comprises a plurality of reversely disposed hinge members of U-shaped cross section, certain of which are attached to the rear surf-ace of said fixed part and the remainder to the rear surface of said movable part, and a pivot-pin connecting said members, said pivot-pin being substantially spaced rearward from the forward attaching faces of said members and being also substantially spaced from one end of each member toward the middle thereof, and the hinge members on said movable part having end portions engaging the rear surface of said fixed part and forming stops to limit closing movement of said movable part.

LAURANCE R. CLARKE. 

